A client who had knee replacement surgery 2 days ago has a sudden onset of dyspnea and cough and reports a sharp, stabbing pain in the chest. The nurse notes a heart rate of 110 beats/min, bilateral crackles in lung fields, and an oxygen saturation of 97% on room air. Which postoperative complication does the nurse suspect the client has developed?
A) Atelectasis
B) Deep vein thrombosis
C) Pneumonia
D) Pulmonary embolism